My v50 sport starts ok but revs wil not go above 2000rev Sometimes

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My v50 sport starts ok but revs wil not go above 2000rev Sometimes if I turn engine off and restart its ok for a time but will then shut down to 2000rev while driving. I have had a new pedal fitted but prob remains. keith

Enes :im offline now but you get update email whrn you reply back and when I update answer you get email to read you don't have to wait

Customer:

The code that keeps coming up is CEM-3F93 and this has gone on for over 2 years. When the codes are cleared its ok for 2 weeks-or-2 months then returns . The revs go to 2000/2500 but no higher. It was just the same before the pedal was changed. keith

Enes :Problem is not gas pedal most cases

Enes :you must replace all terminals at gas pedal connector volvo has updated terminals for that code if keeps coming back

Enes :so new terminals replace all than check wiring from gas pedal to cem for loose terminals and replace on cem terminals for gas pedal

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